Lifting-dog



(No Model.)

F. BEATTIE.

LIPTING DOG.

. No. 542,230. Patented July 9, 1895.

UNITED STATES PATENT OFFICE.

FRANK BEATTIE, OF LEETE ISLAND, CONNECTICUT.

LlFTlNG-DOG.

SPECIFICATION forming part of Letters Patent No. 542,230, dated July 9,1895.

Application filed December 8, 1894. Serial No. 531,202. (1% model.)

To all whom it may concern:

Be it known that I, FRANK BEATTIE, of Leete' Island, in the county ofNew Haven and State of Connecticut, have invented a new Improvement inLifting-Dogs, (Case A;) and I do hereby declare the following, whentaken in connection with the accompanying drawings and the letters ofreference marked thereon, to be a full, clear, and exact description ofthe same, and which said drawings constitute part of this specification,and represent, in-

Figure 1, a side view of the apparatus as engaged with a stone and readyto raise the same; Fig. 2,a similar view of the apparatus as applied toa stone and before the raising operation takes place; Fig. 3, a rearview of one of the arms detached.

This invention relates to an improvement in lifting-dogs, particularlysuch as are adapted for raising blocks of stone, and is an improvementupon the device shown and described in' an application for LettersPatent filed by me September 7, 1894:, Serial No. 522,315, the object ofthis invention being to form the lower end of the arm for directongagement with thelifting-chain; and it consists in the construction ashereinafter described, and particularly recited in the claims.

The device consists of two jaws A B, provided at their inner ends withbearing-blocks C, which are preferably swiveled to the ends of the jawsto form a universal joint. The upper ends of the jaws are connected toarms D E by links F G. The upper end of the arm D is constructed with anoutwardly-projecting eye H and the arm E with a correspondingoutwardly-projecting eye I. The lower ends of the arms D E, below thelinks F G, are reduced and bifurcated, forming fingers a b, which extendslightly rearward. EX- tending downward through the eye H, link F, andupward through the link G and eye I is a lifting-chain J, which extendsupward for engagement with the raising device. (Not shown.)

In operation the jaws A B are placed on opposite sides of a stone K, andso that the blocks C rest against it, and the arms D. E are turnedoutward, as shown in Fig. 2. The fingers a b of the arms are thenengaged with the links of the chain .I, which form a fulcrum for them,it being understood that the chain is drawn as tightly as possible byhand. When lifting force is applied to the upper end of the chain, thesaid chain, passing through the eyes in the upper ends of the arms,draws said upper ends toward each other, as shown in Fig. 1, and as thelower ends of the arms are held substantially stationary by the chainthe jaws, which are pivoted to the arms above the fingers, are drawninto closer contact with the stone K, which is then gripped withsufficient force to be held for raising.

This device is an improvement upon the apparatus described in theapplication above referred to, for the reason that the strain of thechain comes upon the upper ends of the arms and not upon the eyes H I,which simply serve to guide the chain. Again, the lower ends of the armsare in direct connection with the chain, which is more convenient inadjusting the device upon the stone.

I claim 1. In lifting dogs, the combination with the jaws thereof, oftwo arms, links connecting each pair of jaws and arms, the upper ends ofsaid arms constructed with outwardly projecting eyes, and with fingersat their lower ends below their point of'connection with said jaws, achain adapted to be engaged by the said fingers and extending upwardthrough said eyes, substantially as described.

2. In lifting dogs, the combination with the jaws thereof, of two arms,links connecting each pair of jaws and arms, said arms constructed withfingers at their lower ends below the point of connection with saidjaws, and a lifting chain adapted to be engaged by said fingers,substantially as described.

In testimony whereof I have signed this specification in the presence oftwo subscrib-' ing witnesses.

FRANK BEATTIE. Witnesses:

M. O. BEATTIE, C. I. BEATTIE.

